RE: couple of newbee questions....
This is strange. I land my students trainers both dead stick and with the engines idling on our paved runway and the plane doesn't "roll forever". Usually a very short (relatively) roll. They don't have fuel tube on the axles or any other gimmicks. SLOW THE PLANE DOWN. Try a finer pitched prop as it will allow you to slow the plane down better.
Just how far is "rolling forever" in terms of feet?